The Girls star popped up in a skit about designer shopping wearing nothing but unflattering nude-coloured undies and a see-through plastic rain coat.

In the sketch, Amy was led through a curtain into a field after asking a shop assistant at a trendy clothing store for a T-shirt in her size. There, she saw a cow, met up with a clearly crazy Dunham, and was offered the chance to buy a piece of blue tarpaulin, which was covering a stack of firewood.

Pixelated Lena told Amy she had been there for some time after shopping at the store, adding her friend the cow was shopping for a bar mitzvah outfit. She also featured in the blooper reel at the end of the show, which aired on Thursday night (12May16) - the eve of the actress/writer's 30th birthday.

Lena celebrated with flowers from her boyfriend Jack Antonoff and shared a a sweet snap of several bouquets lying on a stool on Instagram. Next to the blooms was a sign, which read: "Happy Birthday 30,000".

She captioned the snap: "Arrived home from a late night of shooting to find this display waiting for me. I already love being 30 (and I love my boyfriend. A lot a lot a lot.) UPDATE: Asked sleeping Jack if he made me the birthday sign. He mumbled sarcastically 'no, I ordered it.'"